Ice age starts with a landscape view of a snow covered ground, snow is falling down, we then start to see some sort of creature running in the snow. We then see him try to bury an acorn several times and failing, we then see him try out investigate different places he could bury it. Once he has found a suitable place he buries it but as he does this the ice cracks all around him causing an avalanche. We see the little creature trying to get his acorn out of the ground before the ice and snow comes. We then see a birds eye view of him running away and the ice following him. He manages to escape but has fallen to a place which is now covered in grass as he lands and is safe he is trampled on by many different animals who are going further south as the ice age is hitting. This then cuts to the opening credits.